Definition of infix noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈɪnfɪks//
; NAmE NAmE//ˈɪnfɪks//
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a letter or group of letters added to the middle of a word to change its meaning Word Originearly 16th cent.: from Latin infix- ‘fixed in’, from the verb infigere, from in- ‘into’ + figere ‘fasten’, reinforced by in- ‘into’ + fix. The noun is on the pattern of prefix and suffix.
See the Oxford Advanced American Dictionary entry: infix